【摘要】 将模态试验分析技术和有限元模态分析相结合,通过对发动机油底壳的模态试验分析、模态参数识别,得到了其固有频率和模态,提出了结构优化方向,为进一步地降低噪声奠定了基础。更多还原

【Abstract】 Based on the combination of modal analysis technology and finite element analysis(FEA),the modal test and modal parameter identification of engine oil pan were conducted to determine the natural frequencies and modes.The results could provide a basis for structure optimization and control of noise.更多还原